Key Features
- Combine up to 8 PSM Transmitters
- Overload & Signal LED Indicators
- Temperature-Sensitive Fan
- Optimizes RF management
- Reduces Rack Clutter
Description
Eight-Channel PSM Antenna Combiner, 470-865 MHz
Antenna Combiner for PSM Wireless Systems
Eight-to-One Wideband PSM Antenna Combiner for all P3T, P9T and P10T Transmitters (470-865 MHz)
The PA821B active broadband antenna combiner streamlines the simultaneous operation of many PSM systems at a venue. The PA821B combines the RF outputs from up to eight PSM transmitters into one RF output to feed a single transmit antenna. This provides significantly improved reception quality due to reduced intermodulation distortion and dropouts due to multipath interference.
The PA821B is compatible with the wireless personal monitors Shure PSM 300, PSM 900 and PSM 1000.
Features:
- Combines up to eight PSM transmitters to a single antenna set
- Improves RF networking
- Reduces rack clutter
- Wideband operation (470-865 MHz or 865-960 MHz)
- 8 Input LED Signals (green when active; off when inactive)
- Quieter fan for significant reductions in ambient unit noise
- Temperature-sensitive fan power for significant reductions in ambient unit heat
- LED indications of signal presence and signal overload
- Passive (non-powered) antenna combining*
- * Contact Performance Audio for more detail and availability. Requires modification of unit by qualified service technician.
Specifications:
- RF Frequency Range:
PA821B: 470-865 MHz
PA821BX: 865-960 MHz - Impedance: 50 Ω
- Operating Temperature Range: -18 °C (0 °F) to 63 °C (145 °F)
- Power Requirements: 100 to 240 V AC, 50-60 Hz
- Current Drain: 1.59 A (referenced at 100 V AC) (159 VA)
- Power Consumption: 143 W max.
- RF Input
- Connector Type: BNC
- Configuration: Active
- Impedance: 50 Ω
- RF Gain: 0 dB (±2 dB)
- LED Indicator Min. Detection Threshold: 2.5 dBm
- LED Indicator Overload Threshold: >24 dBm
- Main Output
- Connectory Type: BNC
- Impedance: 50 Ω
- Expansion Port
- Connector Type: BNC
- Configuration: Passive
- Impedance: 50 Ω
- Insertion Loss: <4 dB
- RF Expansion Port Normal Operating Range: 33 dBm (2 W)
- Included Accessories
- IEC Power Cord
- Four (4) 22 in. coaxial cables, BNC terminated
- Four (4) 2 ft. DC power output cables
- One (1) 11 in. coaxial cable, BNC terminated
- Optional Accessories
- Passive omnidirectional antenna
- Passive directional antenna
- Helical antenna
- BNC-terminated coaxial cables (RG-8X/U; various lengths)
- Manufacturer: Shure
- MPN: PA821B
- Model Number: PA821B
- UPC: 042406472166



